* [PATCH] x86: export set_memory_ro and set_memory_rw
@ 2008-09-29 21:38 Jesse Brandeburg
0 siblings, 0 replies; 2+ messages in thread
From: Jesse Brandeburg @ 2008-09-29 21:38 UTC (permalink / raw)
To: mingo, davem; +Cc: =netdev, linux-kernel, jesse.brandeburg, bruce.w.allan
From: Bruce Allan <bruce.w.allan@intel.com>
Export set_memory_ro() and set_memory_rw() calls for use by drivers that need
to have more debug information about who might be writing to memory space.
this was initially developed for use while debugging a memory corruption
problem with e1000e.
Ingo Molnar <mingo@elte.hu> said:
>> +EXPORT_SYMBOL(set_memory_rw);
> that's fine, as long as you make it kernel-internal EXPORT_SYMBOL_GPL()
patch was modified with this suggestion.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/mm/pageattr.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 43e2f84..62c1eef 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages)
{
return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
}
+EXPORT_SYMBOL_GPL(set_memory_ro);
int set_memory_rw(unsigned long addr, int numpages)
{
return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
}
+EXPORT_SYMBOL_GPL(set_memory_rw);
int set_memory_np(unsigned long addr, int numpages)
{
^ permalink raw reply [flat|nested] 2+ messages in thread* [PATCH] x86: export set_memory_ro and set_memory_rw
@ 2008-09-29 21:39 Jesse Brandeburg
0 siblings, 0 replies; 2+ messages in thread
From: Jesse Brandeburg @ 2008-09-29 21:39 UTC (permalink / raw)
To: mingo, davem; +Cc: netdev, linux-kernel, jesse.brandeburg, bruce.w.allan
From: Bruce Allan <bruce.w.allan@intel.com>
Export set_memory_ro() and set_memory_rw() calls for use by drivers that need
to have more debug information about who might be writing to memory space.
this was initially developed for use while debugging a memory corruption
problem with e1000e.
Ingo Molnar <mingo@elte.hu> said:
>> +EXPORT_SYMBOL(set_memory_rw);
> that's fine, as long as you make it kernel-internal EXPORT_SYMBOL_GPL()
patch was modified with this suggestion.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/mm/pageattr.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 43e2f84..62c1eef 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -906,11 +906,13 @@ int set_memory_ro(unsigned long addr, int numpages)
{
return change_page_attr_clear(addr, numpages, __pgprot(_PAGE_RW));
}
+EXPORT_SYMBOL_GPL(set_memory_ro);
int set_memory_rw(unsigned long addr, int numpages)
{
return change_page_attr_set(addr, numpages, __pgprot(_PAGE_RW));
}
+EXPORT_SYMBOL_GPL(set_memory_rw);
int set_memory_np(unsigned long addr, int numpages)
{
^ permalink raw reply [flat|nested] 2+ messages in thread
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